Petrological constraints on evolution of continental lithospheric mantle beneath the northwestern Ethiopian plateau: Insight from mantle xenoliths from the Gundeweyn area, East Gojam, Ethiopia

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Petrological constraints on evolution of continental lithospheric mantle beneath the northwestern Ethiopian plateau: Insight from mantle xenoliths from the Gundeweyn area, East Gojam, Ethiopia

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作者：Melesse Alemayehu^a ; ^c ; ^{melesse555@yahoo.com" class="auth_mail" title="E-mail the corresponding author} ; Hong-Fu Zhang^a ; ^b ; ^{hfzhang@mail.igcas.ac.cn" class="auth_mail" title="E-mail the corresponding author} ; Bin Zhu^a ; Birhanu Fentie^c ; Samuel Abraham^d ; Muhammed Haji^d
关键词：Petrography ; Major-trace element ; Depleted ; Enriched ; Peridotite xenolith ; EARS
刊名：Lithos
出版年：2016
出版时间：January 2016
年：2016
卷：240-243
期：Complete
页码：295-308
全文大小：2024 K

文摘

•: Partial melting and metasomatism are the major processes affecting CLM of Ethiopian plateau.
•: Gundeweyn mantle xenoliths record high mantle heat flow between 60 and 150 mW/m².
•: A high geotherm shows presence of active mantle upwelling under Ethiopia plateau.
•: Plateau lithosphere is product of interaction between melt with depleted lithosphere.
•: The interaction is probably related to mantle upwelling focused beneath EARS.